881251468065 has 24 divisors (see below), whose sum is σ = 1568786400168. Its totient is φ = 457298058240.

The previous prime is 881251468051. The next prime is 881251468093. The reversal of 881251468065 is 560864152188.

881251468065 is a `hidden beast` number, since 8 + 8 + 1 + 2 + 514 + 68 + 0 + 65 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 480926993121 + 400324474944 = 693489^2 + 632712^2 .

It is not a de Polignac number, because 881251468065 - 2⁶ = 881251468001 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264638416 + ... + 264641745.

It is an arithmetic number, because the mean of its divisors is an integer number (65366100007).

Almost surely, 2^881251468065 is an apocalyptic number.

It is an amenable number.

881251468065 is a deficient number, since it is larger than the sum of its proper divisors (687534932103).

881251468065 is a wasteful number, since it uses less digits than its factorization.

881251468065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529280209 (or 529280206 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 54.

The spelling of 881251468065 in words is "eight hundred eighty-one billion, two hundred fifty-one million, four hundred sixty-eight thousand, sixty-five".